在運(yùn)行java中HttpSessionListener監(jiān)聽(tīng)器時(shí)，運(yùn)行報(bào)錯(cuò)：嚴(yán)重:?StandardWrapper.Throwablecom.sun.jersey.api.container.ContainerException:?The?ResourceConfig?instance?does?not?contain?any?root?resource?classes.以下是監(jiān)聽(tīng)器程序：package?Listener1; import?javax.servlet.annotation.WebListener; import?javax.servlet.http.HttpSessionEvent; import?javax.servlet.http.HttpSessionListener; @WebListener public?class?HSL?implements?HttpSessionListener?{ private?int?ub; @Override public?void?sessionCreated(HttpSessionEvent?se)?{ ub++; se.getSession().getServletContext().setAttribute("ub",?ub); } @Override public?void?sessionDestroyed(HttpSessionEvent?se)?{ ub--; se.getSession().getServletContext().setAttribute("ub",?ub); } } 求大神指點(diǎn)哪里錯(cuò)誤?。。。。》浅８兄x?。。?！